Perpetual calendar



4, 1936- l. c. MODANIEL 2,050,110

PERPETUAL CALENDAR Filed Nov. 15, 19:55 2 Sheets-Shet 1 23 BY myfiwi ATTORNEY Aug. 4, 1936.

Filed Nov; 15, 1935 I. C. M DANIEL PERPETUAL CALENDAR 2 Sheets-Sheet 2 2 IM N M Ira (WK-Waive] ATTORNEY Patented Aug. 4, 1936 UNITED STATES PATENT OFFICE PERPETUAL, CALENDAR "Ira C". "McDaniel, .Kansas, Ohio Application November 13, 1935, SerialNo. 49,594

4 Claims.

The invention relates to a calendar and more especially to perpetualcalendars.

The primary object of theinvention is the provisionof a calendar, wherein ithemonth, day and year can be changed, this being had through mechanical mechanism manually controlled and by the setting of such calendar the same can be used from year to year so as to render it perpetual for service.

Another object of the invention is the provision of a calendar of this character, wherein the constructionthereof enables it to be placed upon a desk or other support and hung upon a wall, it possesses but few parts and is readily and easily adjusted for the setting of the calendar to disclose the day, month and year as may be current and thus the name of the month, the name of the day and the number of such days can be simultaneously disclosed or made visible.

A further object of the invention is the provision of a calendar of this character, which is extremely simple in construction, thoroughly reliable and efficient in its operation, neat in appearance, readily portable, strong, affording a perpetual calendar and inexpensive to manufacture.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, which disclose the preferred embodiment of the invention and pointed out in the claims hereunto appended.

In the accompanying drawings:

Figure 1 is a front elevation of a calendar constructed in accordance with the invention.

Figure 2 is an enlarged elevation showing the front removed.

Figure 3 is a side elevation thereof.

Figure 4 is an enlarged sectional view on the line 4 4 of Figure 1 looking in the direction of the arrows.

Figure 5 is a sectional view on the line 55 of Figure 2 looking in the direction of the arrows.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, the calendar comprises a casing A including a front section it and a back section II, these being made from sheet metal. This front section ID has an open center covered by a glass panel I2 coated with an opaque backing I3 providing transparent windows or sight slots or openings M, I5 and [6, respectively, these being symmetrically arranged in spaced relation to .eachzother and :this panel I2 is held within a frame I 1 joined with the section Iii marginally of the open center thereof.

Theback section I I constitutes the base of the casingA and marginally-thereof is flanged at .I8 5 so that the said sections In and II canbe .separably joined by fasteners I9. Rearwardly of the panel I2 and adapted to expose indicia such as the name-0f the month of a year as at 20, the numberof the day of the month'as at 21 and the 19 name of the day as at 22 through the respective windows I4, I5 and It are traveling ribbons 23, each being secured to spools 24 for alternate winding and unwinding on and from pairs thereof. common to the said ribbons. The pairs of spools 24 for each ribbon are journaled in bearings 25 thereforas carried upon the back section I I internally of the casing A and such ribbons 23 tra'velin'guides 26 offset forwardly from the back section I I when aligned with the windows in the 20 panel I2 so as to assure exposure of the indicia identifying the day, month and year through said windows or openings as will be apparent from Figure 1 of the drawings.

Companion to each pair of spools 24 for the 5 ribbons 23 is an actuating shaft 21, it being journaled in bearings 28 on the back section II and this shaft 2'! has formed therewith friction wheels 29, One being adapted for engagement with one of the spools and the other with the other spool. 30 When one of the wheels 29 is in engagement with one of the spools 24 the other wheel is out of engagement with the other spool so that by alternate engagement of these wheels with the said spools the ribbon 23 can be reversed for travel to the right hand side or to the left hand side of the calendar. Surrounding the shaft 21 and acting within one of the bearings 28 therefor is a coiled tensioning spring 38 which functions to normally hold the wheel 29 at the right hand side of the calendar in frictional engagement with the spool 24 at this side while the wheel and spool for the opposite side of the calendar are out of engagement with each other.

The series of shafts 21 project through one side of the front section i0 and carry at these projected ends knurled disk-like knobs 3| so that they can be manually turned. Each knob 3| has fitted therewith eccentrically a turning button or projection 32 for cranking action so that the shafts 21 can be rotated either by actuating the knobs 3| or the projection 32.

Straddling each spool 24 is a guard 33 which prevents the riding of the ribbon 23 off of the spool or irregularity thereon when the calendar is adjusted for changing the date data or indicia for exposure through the windows or openings l4, l5 and iii of the panel l2.

The back section II has provided therein suitable holes 34 so that the calendar can be hung upon a vertical support or wall although the said calendar can be placed at rest upon a table or other support at the option of the user thereof.

The windings of the ribbons 23 on the spools 24 are reversed so that when one of the ribbons is winding upon one spool it is being unwound from the other spool and thus the direction of travel of the ribbons can be regulated.

It is preferable to cut and bend the bearings 25 and 28 for the spools and shafts from'the back section II of the casing A.

The ribbons 23 and the indicia 20, 2i and 22 thereon does not limit the calendar for use but a single year but enables it to be perpetual from year to year for calendar service.

It is, of course, to be understood that the construction of the casing A and its front section H] can be varied to meet the requirements in the use of the calendar, as for example the glass panels can be eliminated thus leaving the openings or windows uncovered or these windows can be made in a cardboard insertable in the front section and the latter carrying a glass panel covering the cardboard, these structural features being no part of the present invention and also advertising matter may appear on the front section if desired.

What is claimed is:

1. In a calendar construction, a base, bearings cut and bent from said base, indicia carrying strips connected with spools journaled in said bearings for alternate winding on and unwinding from the same, and rotatable actuating shafts journaled on the base and each having friction wheels for alternate contact with said spools oppositely arranged to each other.

2. In a calendar construction, a base, bearings cut and bent from said base, indicia carrying strips connected with spools journaled in said bearings for alternate winding on and unwinding from the same, rotatable actuating shafts journaled on the base and each having friction wheels for alternate contact with said spools oppositely arranged to each other and springs active upon the shafts to normally hold contact of certain of the spools with certain of the friction wheels.

3. In a calendar construction, a base, bearings cut and bent from said base, indicia carrying strips connected with spools journaled in said bearings for alternate winding on and unwinding from the same, rotatable actuating shafts journaled on the base and each having friction wheels for alternate contact with said spools oppositely arranged to each other, springs active upon the shafts to normally hold contact of certain of the spools with certain of the friction wheels and a cover for said base and having windows exposing portions of said strips.

4. In a calendar construction, a base, bearings cut and bent from said base, indicia carrying strips connected with spools journaled in said bearings for alternate winding on and unwinding from the same, rotatable actuating shafts journaled on the base and each having friction ports on said base and having guides for said strips for holding the latter flat and smooth at the windows.

IRA C. MCDANIEL. 

